[Wylug-help] Laptop wifi puzzle

[Anne Wilson]

I've not used wifi on this laptop for a considerable time.  Yesterday I needed 
to do so, but came across something that has me completely baffled.  On a 
wifi connection to my own LAN I could retrieve my mail from the imap server, 
but I couldn't access the Internet.  I couldn't ping Internet IPs.  Worse - 
when I set it to dhcp I got exactly the opposite.  I could access the 
Internet but not my mail server.

This laptop is using Mandriva 2008, fully updated.  I use wpa-psk and static 
addressing.  A cabled connection works as expected, but the wifi one doesn't.  
At one point I tried using dhcp and found that I could connect to the 
Internet - but not to my mail server!

I'm completely baffled.  Surely it should either work or not work?  Half-way 
doesn't make sense.  With both interfaces enable (not how I would expect to 
work) ifconfig shows  mess on eth1.  This is all the info I can gather:

ifconfig
eth0      Link encap:Ethernet  HWaddr 00:C0:9F:83:F1:B5
          inet addr:192.168.0.91  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::2c0:9fff:fe83:f1b5/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:630 errors:0 dropped:0 overruns:0 frame:0
          TX packets:364 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:413894 (404.1 KiB)  TX bytes:46460 (45.3 KiB)
          Interrupt:16

eth1      Link encap:Ethernet  HWaddr 00:0E:35:E0:08:B9
          inet addr:192.168.0.95  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::20e:35ff:fee0:8b9/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:129 errors:25 dropped:94 overruns:0 frame:0
          TX packets:24 errors:0 dropped:0 overruns:0 carrier:1
          collisions:0 txqueuelen:1000
          RX bytes:213230 (208.2 KiB)  TX bytes:33067 (32.2 KiB)
          Interrupt:17 Base address:0xa000 Memory:c8219000-c8219fff

cat /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
BOOTPROTO=static
IPADDR=192.168.0.95
NETMASK=255.255.255.0
GATEWAY=192.168.0.1
ONBOOT=yes
METRIC=35
MII_NOT_SUPPORTED=no
USERCTL=yes
DNS1=212.23.3.100
DNS2=212.23.6.100
RESOLV_MODS=yes
WIRELESS_MODE=Managed
WIRELESS_ESSID=Lxxxxx2
WIRELESS_ENC_KEY="open s:xxxxxxxxxxx"
WIRELESS_WPA_DRIVER=wext
IPV6INIT=no
IPV6TO4INIT=no

cat /etc/wpa_supplicant.conf
ctrl_interface=/var/run/wpa_supplicant
eapol_version=1
ap_scan=1
fast_reauth=1
network={
    psk="xxxxxx"
    scan_ssid=1
    ssid="Lxxxxx2"
}

I tried adding

    proto=WPA
    key_mgmt=WPA-PSK

to wpa_supplicant.conf, but it seems to be dynamically overwritten.

Any ideas, please?

Anne
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